4 1 10 Written English For Business Gerald Less Primary Author mixed material 0194512347 New York Oxford Unversity Press 1990 Writing English For Business R.G.H. Andrews Primary Author mixed material 0194512339 New York OXFORD UNIVERSITY PRESS 1990 Longman Grammar Of Spoken And Written English Randolph Quirk Primary Author mixed material 0582237254 London Longman 1999 Longman_Grammar_Of_Spoken_And_Written_English.jpg.jpg Study Writing A Course In Written English For Academic And Prefosional Purposes Liz Hamp Lyons Primary Author Ben Heasley Additional Author mixed material 0521315581 New York cambridge university press 1987